JPWO2016143122A1 - Air conditioner - Google Patents

Abstract

Provided is an air conditioner that determines a mounting position of an infrared sensor and associates a wind direction control vane with a temperature detection area. The air conditioner (50) includes a cabinet (1), a rectangular decorative panel (2) installed so as to cover the opening (14) on the lower surface thereof, and four places around the suction port (13). Air outlet vane (5), wind direction vane (5) whose angle can be adjusted independently for each air outlet (4), and infrared ray capable of detecting floor temperature for each of the divided areas (A) divided into four in the circumferential direction A sensor (6) and a control device (16) are provided. The infrared sensor (6) is attached to any one of the corners (C) of the decorative panel (6) so that each corner (C) faces in a different direction. The control device (16) controls the wind direction vane (5) so as to blow out the airflow from one outlet (4), operates, and the difference in floor temperature between the start of operation and during operation exceeds a specified value. The mounting position of the infrared sensor (6) is determined (D1) from the divided area (A), the arrangement position of the wind direction vane (5), and the mounting direction of the infrared sensor (6), and the floor surface temperature difference is greater than or equal to the specified value. The divided area (A) and the wind direction vane (5) to be controlled are associated with each other.

Description

  The present invention relates to an air conditioner, and more particularly to setting of an attachment position of an infrared sensor of an air conditioner.

A conventional ceiling-embedded or ceiling-suspended air conditioner with an infrared sensor attached to it divides the air-conditioning space into multiple areas, detects the radiation temperature or the presence of a person with the infrared sensor, Some air conditioning is focused on areas where people are present and control is performed to eliminate temperature variations.
For example, Patent Document 1 discloses an air conditioner that recognizes the installation position of the air conditioner itself in the room based on the temperature distribution output by the infrared sensor and performs an efficient air conditioning operation.
Moreover, in patent document 2, the infrared sensor attached to the air conditioner has a standard attachment position, and when changing the attachment position of the air conditioner, the attachment position and the air conditioning are used using a mark or the like. An air conditioner that performs an operation corresponding to operation control is disclosed.

Japanese Patent Publication No.7-113472 JP 2012-83077 A

  The air conditioner in Patent Document 1 has a problem that the mounting position of the infrared sensor is fixed, and the mounting position of the infrared sensor in the air conditioner cannot be changed.

  In the air conditioner in Patent Document 2, it is troublesome that a person must memorize the mounting position and set and register the information of the mounting position with a remote controller, and there is a problem that it may be erroneously set. there were.

  The present invention has been made to solve the above-described problems, and is an air that can automatically determine the mounting position of the infrared sensor and easily correspond to the wind direction control vane and the temperature detection area. The purpose is to provide a harmony machine.

  An air conditioner according to the present invention has a heat exchanger and a blower built in, has a cabinet whose bottom surface is opened and installed on the ceiling, a suction port in the center, and covers the opening on the bottom surface of the cabinet. Installed in a square-shaped decorative panel that is larger than the opening of the cabinet, and at four locations around the suction port, are provided along the four sides of the decorative panel, and provided at the outlet. A wind vane capable of adjusting the angle independently for each of the outlets, an infrared sensor capable of detecting a floor temperature for each of the divided areas divided into four in the circumferential direction, and a control device, the infrared sensor comprising: The infrared sensor is attached to any one of the four corners of the decorative panel, and the direction in which the attachment reference of the infrared sensor faces differs depending on the corner to which the infrared sensor is attached. The control device controls the wind direction vane so as to blow an air flow from one of the outlets toward the floor surface, performs a heating operation or a cooling operation, and detects the temperature by the infrared sensor before starting the operation. The difference between the floor surface temperature and the floor temperature during operation is not less than a specified value, the divided region of the infrared sensor, the arrangement position of the wind direction vane that blows airflow toward the floor surface, and the infrared sensor The mounting position of the infrared sensor is determined based on the mounting reference, and the divided vane where the floor surface temperature difference is equal to or greater than a specified value is associated with the wind direction vane to be controlled.

  According to the present invention, since the work for matching the detection range of the infrared sensor and the wind direction control vane is automated regardless of the mounting position of the infrared sensor, the setting becomes easy and erroneous setting is prevented. Correct operation is obtained.

It is a perspective view which shows the whole structure of the air conditioner in Embodiment 1. FIG. It is the figure showing the cross section of the II section of the air conditioner of FIG. It is a bottom view of the air conditioner of FIG. It is the figure which simplified FIG. 3 and showed the direction of the detection area when an infrared sensor is attached to each corner | angular part. It is a bottom view when an infrared sensor is attached to the corner C2. 3 is a flowchart of control in the first embodiment. 10 is a flowchart of control in the second embodiment.

Embodiment 1 FIG.
1 is a perspective view showing the overall structure of an air conditioner according to Embodiment 1. FIG.
The air conditioner according to the present embodiment is installed in a state of being embedded in the ceiling or suspended from the ceiling. The air conditioner 50 includes a box-shaped cabinet 1 whose bottom surface is opened, and a rectangular decorative panel 2 that is attached so as to cover the bottom surface opening of the cabinet 1 and is larger than the opening of the cabinet 1.
The decorative panel 2 is provided with a substantially rectangular air inlet 3 at the center thereof. Outlet ports 4 a to 4 d (hereinafter sometimes collectively referred to as the outlet port 4) are provided on the four sides of the inlet port 3 so as to surround the inlet port 3. In each of the outlets 4a to 4d, wind direction vanes 5a to 5d (hereinafter referred to simply as wind direction vanes 5), which are air guide means for changing the wind direction in the vertical direction, may be described. ) Is provided. The direction of the wind blown out from each outlet 4 is set such that the air conditioner 50 can be directed in four directions by 90 ° when viewed in plan from below. Corner panels 2 a to 2 d are detachably attached to the corners of the decorative panel 2.

  In addition, one of the corners (corner part) on the lower surface of the decorative panel 2 (for example, the corner C1) detects the radiation temperatures of a plurality of areas of the airflow blown from the outlet 4 and is also a human body sensor. An infrared sensor 6 for detecting the presence of a person is attached. In addition, this infrared sensor 6 is not limited to the position shown in the figure, and can be attached to a preferred position of any corners C1 to C4 on the lower surface of the decorative panel 2 according to the layout of the room.

FIG. 2 is a view showing a cross section of the II portion of the air conditioner 50 of FIG.
An electric motor 7 is provided at the center of the top surface inside the cabinet 1 with the output shaft facing downward. A centrifugal blower 8 is attached to the output shaft, and a heat exchanger 9 is installed so as to surround the blower 8. An air passage 17 is formed on the outer periphery of the heat exchanger 9 so as to surround the heat exchanger 9. An inner cover 10 that blocks heat exchanged air and air outside the air conditioner 50 is disposed outside the air passage 17. A drain pan 11 that receives condensed water generated by heat exchange between the refrigerant in the heat exchanger 9 and air and that constitutes a part of the air passage 17 is installed below the heat exchanger 9. A decorative panel 2 is disposed below the drain pan 11. The suction port 3 provided in the decorative panel 2 communicates with the suction port of the blower 8. An air passage 17 formed by the inner cover 10 and the drain pan 11 communicates with the outlet 4.

  An air filter 12 for preventing dust and the like from entering the air conditioner 50 is installed in the suction port 3 provided in the decorative panel 2, and the air filter is supported outside the air filter 12. In addition, a grill 13 that functions as a blindfold is provided. Further, between the air filter 12 and the blower 8, a bell mouth 14 for smoothly introducing the air sucked from the suction port 3 into the blower 8 and a suction temperature sensor 15 for detecting the suction temperature are provided.

  In addition, a remote control 16 (corresponding to the control device of the present invention) is connected to the decorative panel 2, and the operation of the air conditioner 50 is controlled. The remote controller 16 performs operation control of the electric motor 7, that is, operation control of the blower 8 and setting of the opening degree of the airflow vane 5 of the outlet 4, and includes a control unit 19 and the like. The remote controller 16 may further include a display unit 20 and an operation unit 18. The remote controller 16 is not limited to a wired one but may transmit an electric signal wirelessly. When the mounting position of the infrared sensor 6 is changed on the air conditioner 50, the remote controller 16 is operated to detect the mounting position.

FIG. 3 is a bottom view of the air conditioner 50 of FIG.
The infrared sensor 6 is attached to the corner C1. This state shows the standard mounting position of the infrared sensor 6 when the manufacturer ships the decorative panel 2 (initial state).
FIG. 4 is a diagram showing the direction of the detection area A when the infrared sensor 6 is attached to each corner, simplifying FIG. 3. The detection area A of the infrared sensor 6 is divided into four detection areas A1 to A4 (corresponding to the divided areas of the present invention). The attachment direction of the infrared sensor 6 is determined when it is attached to each corner. For example, when the infrared sensor 6 is attached to each corner, the infrared sensor 6 is attached so that the detection areas A1 face four directions different from each other by 90 °. The infrared sensor 6 in the present embodiment is integrated with, for example, the corner panel 2a, and an attachment reference is provided at a corner inside the corner panel 2a (on the suction port 3 side), and each of the other three corner portions. It is attached so that it may become an inner corner using the attachment reference. Thereby, the infrared sensor 6 is attached so as to face four directions different by 90 ° at each corner.
The attachment direction only needs to be different for each position where the infrared sensor 6 is attached, and the attachment position can be detected as long as the infrared sensor faces a direction that is different by an angle that can detect that the attachment direction is different. .

For example, when attached to the corner C1, the center of the detection area A1 of the infrared sensor 6 is the upper side of FIG. 4 (the side on the side where the wind direction vane 5a is arranged among the four sides of the rectangular decorative panel 2). It is attached to face the direction of The detection area A2, the detection area A3, and the detection area A4 are sequentially arranged every 90 ° in the counterclockwise direction with reference to the position. At this time, the wind direction vane 5 corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a. Therefore, it is not necessary to use the attachment position detection function of the infrared sensor 6.
When the infrared sensor 6 is attached to the corner portion C2, the center of the detection area A1 is attached so as to face the left direction in FIG. 4 (the direction of the side on which the wind direction vane 5b is disposed). At this time, the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a, and the wind direction vane 5b, which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is facing, Different.
When the infrared sensor 6 is attached to the corner portion C3, the center of the detection area A1 is attached so as to face downward in FIG. 4 (the direction of the side on which the wind direction vane 5c is disposed). At this time, the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a, and the wind direction vane 5c, which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is directed, Different.
When the infrared sensor 6 is attached to the corner portion C4, the center of the detection area A1 is attached so as to face downward in FIG. 4 (the direction of the side on which the wind direction vane 5d is disposed). At this time, the wind direction vane corresponding to the detection area A1 detected by the air conditioner 50 is the wind direction vane 5a, and the wind direction vane 5d, which is the wind direction vane originally intended to correspond to the direction in which the detection area A1 is directed, Different.
Even when attached to the corners C2 to C4, the detection areas A2 to A4 are arranged every 90 ° in order in the counterclockwise direction. As described above, when the wind direction vane 5 corresponding to the detection area A is not correct, it is necessary to change the corresponding wind direction vane 5 using the attachment position detection function.

  FIG. 5 is a bottom view when the infrared sensor 6 is attached to the corner C2. In this figure, a detection area when the infrared sensor 6 is attached to the corner C2 is shown. The infrared sensor 6 can be rotated 360 ° around a vertical axis by a motor (not shown) (360 ° can be rotated in the plane of FIG. 5), and a sensor with a certain viewing angle can rotate the vertical axis. It can rotate to the center and detect the temperature distribution around the entire circumference. When using the attachment position detection function, the detection area of the infrared sensor 6 is divided every 90 ° in the circumferential direction, and four detection areas A1 to A4 are set as shown in FIG. In FIG. 5, the detection areas A <b> 1 to A <b> 4 are divided into four by a line parallel to the diagonal direction of the rectangular decorative panel 2, but is not limited thereto. However, since the relationship between the detection area A and the direction of the wind blown out by the wind direction vane 5 changes when divided in other directions, when the attachment position is determined using the attachment position detection function of the infrared sensor 6. The correspondence table (Table 1 described later) between the detection area A and the wind direction vanes 5 changes. The number of divisions of the detection area A is not limited to four, and may be divided into a plurality of areas so that the temperature distribution on the floor surface around the air conditioner 50 can be understood. In accordance with the division of the area, a correspondence table (Table 1 described later) between the detection area A and the wind direction vanes 5 is appropriately set.

  In the present embodiment, the detection area A of the infrared sensor 6 divided into four at 90 °, the attachment direction in four directions different from the infrared sensor 6 by 90 °, and the arrangement of the wind direction vanes 5 in which the blowing direction is set every 90 ° are arranged. Accordingly, the attachment position detection function and the detection area A and the wind direction vane 5 can be associated with each other without increasing the detection resolution of the infrared sensor 6 and without complicating the control.

FIG. 6 is a flowchart of control in the present embodiment. Next, the operation will be described with reference to FIGS.
The case where the mounting position of the infrared sensor 6 is not reset when the mounting position is changed from the corner C1 which is the standard mounting position of the infrared sensor 6 to the corner C2 as shown in FIG. When the temperature of the detection area A1 is high in the state of FIG. 5, the wind direction vane 5b should be driven to be in a down-blowing state. However, since the attachment position of the infrared sensor 6 has not been reset and the infrared sensor 6 recognizes that it is attached to the corner C1, the remote controller 16 recognizes that the temperature of the detection area A1 is high. The wind direction vane 5a is driven. In order to eliminate such mismatch between the detection area A and the wind direction vane 5 to be driven, the remote controller 16 of the air conditioner 50 performs the control described below.

(Step S11)
The mounting position detection function is executed and started from the remote controller 16.

(Step S12)
It is determined whether the suction temperature detected by the suction temperature sensor 15 is equal to or higher than a specified value.

(Step S13)
When the suction temperature detected by the suction temperature sensor 15 is equal to or higher than a specified value (for example, 24 ° C. or higher) (in the case of Y in step S12), the cooling operation is started.

(Step S14)
When the suction temperature detected by the suction temperature sensor 15 is lower than a specified value (for example, lower than 24 ° C.) (in the case of N in step S12), the heating operation is started.

(Step S15)
The temperature of the floor surface is measured for each of the detection areas A1 to A4 by the infrared sensor 6, and recorded and stored as the temperature t0. Here, the temperature t0 is a matrix of data obtained by dividing the floor surface into a plurality of pieces.

(Step S16)
Only one of the wind direction vanes 5 (for example, the wind direction vane 5a) is blown downward to direct the blown airflow toward the floor.

(Step S17)
After the specified time operation, the temperature of the floor surface is again measured by the infrared sensor 6, and recorded and stored as the temperature t1. Here, the temperature t1 is a matrix of data obtained by dividing the floor surface into a plurality of pieces.

(Step S18)
The temperature t0 measured in step S15 and the temperature t1 measured in step S17 are compared for each of the detection areas A1 to A4. Regardless of the cooling operation or the heating operation, the detection area having the largest absolute value of temperature change (the absolute value of the difference between t0 and t1) is specified.
In addition, when the cooling operation is performed, the detection area A where the floor surface temperature is the lowest is specified, and when the heating operation is performed, the detection area A where the floor surface temperature is the highest is specified. The determination may be made by a method.

(Step S19)
Which corner portion of the infrared sensor 6 is determined based on the identified detection area A based on Table 1. For example, when the wind direction vane 5a is in the downward blowing state and the temperature change in the detection area A2 becomes the largest, it is uniquely determined that the infrared sensor 6 is attached to the corner C2.

(Step S20)
As determined in step S19, the detection area A of the infrared sensor 6 is associated with the wind direction vane 5 to be controlled. For example, in the initial state, the infrared sensor 6 is set to be attached to the corner C1, and as shown in Table 1 above, the wind direction vane 5a operates for the detection area A1, and for the detection area A2, The wind direction vane 5b operates, the wind direction vane 5c operates for the detection area A3, and the wind direction vane 5d operates for the detection area A4. For example, when it is determined in step S19 that it is attached to the corner C2 as shown in FIG. 5, the wind direction vane 5b operates for the detection area A1, and the wind direction vane 5c operates for the detection area A2. The wind direction vane 5d operates for the detection area A3, and the wind direction vane 5a operates for the detection area A4. This setting is written in the remote controller 16 (corresponding to the control device of the present invention).

  As described above, the temperature of the floor surface is changed by setting only one predetermined wind direction vane 5 to the bottom blowing state, and the area for detecting the temperature change is uniquely determined at each corner. By using this, it is possible to detect the correct mounting position of the infrared sensor 6 without making an erroneous setting. Therefore, the correspondence between the detection area A of the infrared sensor 6 and the control of each wind vane 5 can be taken. As a result, the accuracy of detection by the infrared sensor 6 can be improved, and the control for eliminating the temperature unevenness in the room by the detection temperature of the infrared sensor 6, the control for detecting the human body and applying the wind, and the control for avoiding the wind are accurate. Can be controlled. In order to realize such control, the infrared sensor 6 is provided with a human body detection function.

Embodiment 2. FIG.
In the first embodiment, only one of the wind direction vanes 5 is blown down, and the floor temperature detected by the infrared sensor 6 is compared to detect the mounting position of the infrared sensor 6 once. However, a case will be described in which a plurality of wind direction vanes 5 are blown down, the temperature is detected a plurality of times by the infrared sensor 6, and the floor temperature is compared.
FIG. 7 is a flowchart of control in the present embodiment. The operation of the air conditioner 50 will be described with reference to FIG.
Steps S21 to S25 are the same as steps S11 to S15 in the first embodiment.

(Step S26)
The X direction vanes of the wind direction vanes 5 are blown downward, and the blown airflow is directed to the floor surface. However, X is any one of 1, 2, and 3.

(Step S27)
After the specified time operation, the temperature of the floor surface is measured again by the infrared sensor 6 and stored as the temperature t1. Here, the temperature t1 is a matrix of data obtained by dividing the floor surface into a plurality of pieces. If the measurement of t1 is the second time or later, the data matrix of t1 is overwritten.

(Step S28)
The temperature t0 measured in step S25 and the temperature t1 measured in step S27 are compared for each of the detection areas A1 to A4. At this time, when the detection area A having the largest temperature difference between t0 and t1 has not reached the specified value (in the case of N), the process returns to step S27, and the temperature of the floor surface is measured again.

(Step S29)
Regardless of either the cooling operation or the heating operation, the top X detection areas A having a large absolute value of the temperature change are specified. In the case of cooling operation, the top X detection areas A in which the floor temperature is low are specified, and in the case of heating operation, the top X detection areas A in which the floor temperature is high are identified. The detection area A may be specified.

(Step S30)
From Table 1 above, which corner of the corners C1 to C4 the infrared sensor 6 is attached to depends on the X detection areas A identified in step S29 and the X wind direction vanes 5 that are blown down. It is determined. This result is set as determination D1. For example, when the wind direction vane 5a and the wind direction vane 5b are blown downward, and the temperature change between the detection area A3 and the detection area A4 becomes large, the infrared sensor 6 is uniquely attached to the corner portion C3. .

(Step S31)
The Y wind direction vanes 5 other than the wind direction vanes 5 that were previously blown down (X vanes that were blown down in step S26) are placed in the down blow state. However, Y is set to a value smaller than 4-X.

(Step S32)
After the specified time operation, the temperature of the floor surface is measured again by the infrared sensor 6 and stored as the temperature t2. Here, the temperature t2 is a matrix of data measured by dividing the floor surface into a plurality of parts. If the measurement of t2 is the second time or later, the data matrix of t2 is overwritten.

(Step S33)
The temperature t1 measured in step S27 and the temperature t2 measured in step S32 are compared for each of the detection areas A1 to A4. At this time, when the detection area A having the largest temperature difference between t1 and t2 has not reached the specified value (in the case of N), the process returns to step S32, and the temperature of the floor surface is measured again. If the specified value has been reached (in the case of Y), the process proceeds to step S34.

(Step S34)
Regardless of either the cooling operation or the heating operation, the top Y detection areas A having a large absolute value of the temperature change are specified. When cooling operation is performed, the top Y detection areas A where the floor surface temperature is low are specified, and when heating operation is performed, the top Y number where the floor surface temperature is high The detection area A may be specified.

(Step S35)
From Table 1 above, which corner of the corners C1 to C4 the infrared sensor 6 is based on the correspondence between the Y detection areas A identified in step S34 and the Y wind direction vanes 5 that have been blown down. It is determined. This result is set as determination D2. For example, when the wind direction vanes 5c and 5d are blown downward, and the temperature change between the detection area A1 and the detection area A2 increases, the infrared sensor 6 is uniquely attached when the corner C3 is attached.

(Step S36)
The results of the determination D1 obtained in step S30 and the determination D2 obtained in step S36 are compared, and if the results match (in the case of Y), the process proceeds to step S37. If the results are different (N), the control from step S26 is repeated again.

(Step S37)
The detection area A and the wind direction vane 5 are made to correspond correctly from the attachment position of the infrared sensor 6 determined above.

As described above, the accuracy of detecting the correct mounting position can be increased by making the plurality of wind direction vanes 5 blow down and confirming the correspondence with the detection area A, as compared with the first embodiment. Moreover, the detection of the detection area A can be performed accurately by changing the wind direction vane 5 in which the temperature is measured a plurality of times for comparison and changing the wind direction vane 5 to be in the lower blowing state. As a result, attachment position detection is performed accurately and the detection accuracy by the infrared sensor 6 can be increased.
Note that steps S31 to S36 can be omitted and controlled. Further, it is also possible to perform control for executing the step of measuring the temperature by changing the wind direction vane 5 to be in the downward blowing state without repeating the temperature measurement of step S28 and step S33. Omission of these control steps can be set as appropriate according to the specifications of the air conditioner 50.

  1 cabinet, 2 decorative panel, 2a corner panel, 2b corner panel, 2c corner panel, 2d corner panel, 3 suction port, 4 outlet port, 4a outlet port, 4b outlet port, 4c outlet port, 4d outlet port, 5 wind direction vane 5a Wind direction vane, 5b Wind direction vane, 5c Wind direction vane, 5d Wind direction vane, 6 Infrared sensor, 7 Electric motor, 8 Blower, 9 Heat exchanger, 10 Inner cover, 11 Drain pan, 12 Air filter, 13 Grill, 14 Bell mouth, 15 suction temperature sensor, 16 remote control, 17 air path, 18 operation unit, 19 control unit, 20 display unit, 50 air conditioner, A detection area, A1 detection area, A2 detection area, A3 detection area, A4 detection area, C1 Corner, C2 Corner, C3 Corner, C4 Corner, D1 Determination D2 determined, t0 temperature, t1 temperature, t2 temperature.

Claims (5)

A cabinet with a built-in heat exchanger and blower, with the bottom open and installed on the ceiling;
A square-shaped decorative panel that has a suction port in the center and is installed so as to cover the opening on the lower surface of the cabinet, and is larger than the opening of the cabinet;
At four locations around the suction port, outlets arranged along the four sides of the decorative panel;
A wind direction vane provided at the outlet, the angle of which can be adjusted independently for each outlet;
An infrared sensor capable of detecting the floor temperature for each of the divided areas divided into four in the circumferential direction;
A control device,
The infrared sensor is
Attached to any one of the four corners of the decorative panel,
Depending on the corner to which the infrared sensor is mounted, the direction in which the mounting reference of the infrared sensor faces is different,
The controller is
The wind direction vane is controlled so as to blow an air flow from one outlet to the floor surface, the heating operation or the cooling operation is performed, and the temperature is detected by the infrared sensor, and the floor surface temperature before the operation is started and during operation The infrared region from the divided area of the infrared sensor whose difference from the floor surface temperature is equal to or greater than a predetermined value, the arrangement position of the wind vane that blows airflow toward the floor surface, and the mounting reference of the infrared sensor An air conditioner that determines a sensor mounting position and associates the divided area where the floor surface temperature difference is a specified value or more with the wind direction vane to be controlled. The controller is
2. The air conditioner according to claim 1, wherein the air conditioner is controlled to blow an air flow with the wind direction vanes of the one or two outlets directed toward the floor surface. The controller is
The air conditioner according to claim 1 or 2, wherein, when the floor surface temperature difference is less than a specified value, the temperature detection is performed again by the infrared sensor. The controller is
After performing the determination, the air flow is controlled so as to blow airflow from the airflow direction vane different from the airflow direction vane controlled at the time of the determination, and the temperature is detected by the infrared sensor. The difference between the floor temperature during operation and the floor temperature during operation is equal to or greater than a specified value, the divided area of the infrared sensor, the arrangement position of the wind direction vane that blows airflow toward the floor surface, And re-determining the mounting position of the infrared sensor from the mounting reference of the infrared sensor, and when the result of the determination and the re-determination coincides with each other, associate the divided area with the wind direction vane to be controlled, and the determination. The air conditioner according to any one of claims 1 to 3, wherein when the result of the re-determination does not match, the control is repeated again from the temperature detection of the divided region.   The air conditioner according to any one of claims 1 to 4, wherein the infrared sensor is provided with a human body detection function.

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